.container{
  width: 100px;
  height: 100px;
  background: red;
  transition: all 1s;
  /* transition-timing-function: ease-in-out; */
  transition-timing-function: cubic-bezier(0.465, -0.460, 0.525, 1.435);
  /* transition-delay: 1s; */
}
.container:hover{
  width: 800px;
  background:green;
}